30399440

素因数分解:

$2^4\times 5^1\times {\mathrm{379993}}^1$

素因数の和:380006

約数の個数: 20

約数和(自身を含む): 70678884

約数和(自身を除く): 40279444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 379993, 759986, 1519972, 1899965, 3039944, 3799930, 6079888, 7599860, 15199720, 30399440]

約数ペア:

[(1, 30399440), (2, 15199720), (4, 7599860), (5, 6079888), (8, 3799930), (10, 3039944), (16, 1899965), (20, 1519972), (40, 759986), (80, 379993)]